2605120954 has 4 divisors (see below), whose sum is σ = 3907681434. Its totient is φ = 1302560476.

The previous prime is 2605120943. The next prime is 2605120981. The reversal of 2605120954 is 4590215062.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1303571025 + 1301549929 = 36105^2 + 36077^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651280237 + ... + 651280240.

Almost surely, 2^2605120954 is an apocalyptic number.

2605120954 is a deficient number, since it is larger than the sum of its proper divisors (1302560480).

2605120954 is a wasteful number, since it uses less digits than its factorization.

2605120954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302560479.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 2605120954 is about 51040.3855197039. The cubic root of 2605120954 is about 1375.9710525081.

The spelling of 2605120954 in words is "two billion, six hundred five million, one hundred twenty thousand, nine hundred fifty-four".